Scrubbing machine



E. M. CECH SGRUBBINMACI-IINE July 6, 1926; I 1,591,282

Filed March 19. 1923 Elm/21 162;]?

I I traily ti 3:

PatenteidJulyhfi', 19 26.

-hnwmn M: CECH, dr tb ie mit 3m Mmwesm. I

- S BUB W provide an improved arrgihgement or;

' ganizat ion" bf the iirip'ortalfit "fu etiqningr 5 vpaft's where'hyfthe generalfefliciencyi'ef the;

device isincliease'd, the "structural re.- qulrements are rendered 'stmp le, compact; nd cheep of 'niainufaetufe,"Whfle the m nipulation theme-i is rendered Safe ar i'dejon- 10 ve ient; Y Other objects and advantages of the in- 1 cati'o'n pr0gresse's,"'t 'he invention eon'sl sting in the censtr'uct'ien, cpmbination, and a1 "2 scrubbing maehj'fie' embodyin my ihye tion, a pa'i t thereof being shqwn in ive'rt'lca'l' "Seetieh on' a central leng itttdinalline; 1

- container being-sh wn partly; brokenfaway.

htilding device Figure 4, vr w ef the wertma'l e' gym-sung meehamem;

jthe 1:615 ef ziefliindznical' bdtto'm po'rtfen, having a circular sidem-H 3 xtending "downwardly short- *oi the; fioei-fline vi -a so as erme-T0werjha1ve$ efjwhi'chfaie he usual balls *8 which rimin races formed per. 'mdflmwer helve's {thus firming collec- .aibl'y secured to the 11 a fire emeyperspeefive vert al eeetien liview be; a

r the;

plate-2 and formi rig met l mip d t, a pair of side fraf s ferefpreferaHy io'l med 'bffah'gle fro- 1,; achfexte'nding "rearweli'dl" paralleltofthe sjrdefivaill's 9' and being sp c-e5 ilightly ies'peetivel y lihwti'dlyl therfro'm' i'id v m the'l top plate, Which lefiter also f- 'i' ms the Itbp the "extension ortion (if th'e 'h'o'jueipg.

' 'bet een-the uprightset the V theretb; AefrmYm'etessdne b'eplL Suitly thepew-e1" 'electric 00ny'l erminate; t e be electrically eoneamgoif'elm sp'ivet belt 1 5"? av depending of the fmme ems-s: r'n'eimberfiil whereby the conductors 16 t meme; right wiggles a; farm epair 0 f, end-upri hts 9-'-' 10- I V l y lneansefthe I a-h'oits 11f lsi an -ele'e'tr l'c meter handle 3 is I held against swinging move;-

Ihe heok is*e ng evgecl u' nderetresslby 1 a suitable blade spring-164 110:hotdit in con- :sttmt engelfgiemelm-t with the frame, the hook being termed with e finger piece. whereby it the handle to be swung forwardly,andv rest pletethi'eef, 11101 extend fng-Witgh'its ends" resp'ectively'thiough Vertically disposedslotv -h0llsillg, i s th axle-1 8; Secured one to each 1 olf' the 1 beta; ends of the axlefon "the; outside tiveily an end? thrust beaeing-,;.; Extendin 1 4 V H 7 0f thehbusihgeremsuppefting ;Whee1S',19." V 55 "laterally fromth ;eyiindrieaa eortienei-the ihef a xie"isfseppeyteel fon riotstt/ibhflin e pair] 110.

' of adjustably mounted supports 20, each of t said supports having a hinge, connection 21 with the under side ofthe top plate 2, and extending rearwardly beyond the axle, each having swivel connection22 with a vertically disposed thumbscrew23, said; thumb screw extending preferably abovethe level of the top plate to be conveniently accessible for manipulation.

pose to be hereinafter explained.

Rot-atable in the central bearing 5 of the cylindrical housing portion is ahollow or.

tubularshaftQL, which shafthas open ends and extends downwardly into the interior qof'thecylindrical portion and carries rigidly thereat a flanged sleeve 25, which is preferably removably secured,-as by means of the set screw 25.,to the lower end of said shaft andis formed with a radial flange through uwhich extend a plurality of fastening bolts 26,,said bolts extending also through 'a hori zontally disposed, circular supporting plate 27',- whereby the; plate and flange may be ybolted together." Between the plate and vflange. is laced preferably, j a "soft rubber wvasher- 28 to lend resiliency to the-mounting of-the plate. The plate carries onits un derside, preferably four'elongated, radially disposed sockets 29, here shown rectangular in cross sectionand open longitudinally centrallyat, the bottom to form slideways 30, one at thelowerjedgei' of each of the 'side walls. Each socket is adapted to slidably receive a scrubbing brush 31, the scrubbing brushes,as here shown,being ordinary, stand ard scrubbing brushes with parallel sides and being adapted to be inserted in said sockets,

' respectively, to be flush with the outer ends of the latter. Each-socket is further provided ijliwith set: screw '32; preferably passing through. a side wall thereof, whereby the brushes ma be held against radial moveinent when the'disk is rotated. The adja-f cent inner corners of the several socketsare in close proximity to each other so as to form a square, open area centrallycof the 1 plate '27 and between theilatter and. the 1 7 i switch 16 *to set the brushes in motion, as

, The lower ball bearing member is seated-f f upon the upper edge of the flanged sleeve 25,.

and, is secured to the hollow shaft so that the base '1 carrying l the ball bearing portion,

tion adownward movement of the handle 6, is supported in spaced relation to t the floor solelyby the bristles 31r'of the; several brushes, inasmuch as said ball bearing forms 7 thrust bearing} Secured to "the top plate V2 is the? spiderfor'shaft support '33, formed;

with acentralvjournal bearing 33fwherein latter will communicate a rotary movement to the shaft and't-hus rotate the disk 27,

(therefrom, as by means-of thehan'dles over the floor surface by means of the han'- '34, which has belt connection 35 with the pulley 14, so that a rotary movement of the which latter in turn carries the brushes fricj tionally over the surface of the floor.

The thumb screws are 1O threaded inv the horizontal leg of therein,-

" f v forcing, members 1 0,Qwhereby, when said.

' screws are actuated, the axle may be bodily moved vertically to change the level of the housing with respect to the floor, fora pur- 15 H The liquid container 1 is preferably circular in .form and is seated with its lower edge uponfthetop plate 2, and removably fits circumferentially' inside and close-to the head a, so thatit'is prevented from shifting on the housing, but may beconveniently lifted The container is a devic'e formed with an inset bottom 37, thus forming a chamber, said bottom being spaced Vfroni the bearing 33 of the spider and carrying centrally, 'directlyover the hollow of the shaft 2%, a stop cook 38, said stop-cock having a"suitable handle 39 extending through the side wall of the reservoir and beingparallel with the floorthereof and having-a" suitable'hand, piece39 whereby the stop s ck, 111ay 'be opened and closed at will. A'suit-able cover a0 is providediand is appreciably smaller than the diameter ofjthe containerto preventovierflow of the container whenthe latter. is tilted and enables the refillingof the reservoir. Theside wall of the reservoir is suitably cut away below the floor 3'Z -as at V l lyto clearthe belt' 35.,as" is best indicated in Figure 2' of the. drawings.,ZEX'tending transversely between the sidewalls'Q'and preferably through same, isv the pintle 42, upon which is swingingly' supported the closure plate or splash gate 43, to prevent water from being thrown outwardly through the, open end-of the base. t The gate eXtends'to the lower. edge 3 ofthe base and isadapted to be swung rearwardlyto renderthe' brushes S1 accessible to'bewithdrawnfrom the sock ets-29 when desired. i i In, operation, water'gispermitted'to enter the hollowshaft 24 by opening the stop cock38. The water will fall into theiarea surrounded" by the inner ends-of-the sev-, eral brushes and-thus spread uniformly out'-' wardly simultaneously 7 in. circular forma-. tion to the bristles of all of thebrushes. The motor isnow energized by closing the described in the foregoi'ng, while atl th'e same timethe operator propels :the device 9 dle. 15.--When itis desired to shift posiwill fulcrum the device on its wheelsand thus elevate the scrubbing instrumentalities from the floori" The; structure; is designed inca manner to distributethe Weight of the water symmetrically about-' and in direct 'vertical alinement with Ltheshaft QQ, to bring 'the' pressure squarely onto. the scrubthe pressure to effect a scouring operation.

lVhen it is desired totransport the ma--' chine without a scrubbing operation, the

handle 15 may be depressed, thus fulcrumit may be conveniently and easily rolled about. j

A plate 27 and the sockets V 29,,together with the sleeve 25, may be termed as a whole a rotary scrubbing element which is resiliently mounted upon a driving shaft in a manner to beenabled to yieldto inaccuracies of the floor surface. I When the bristles of the brushes become worn and materially shortened from long I use, the space 3 between the housing and the floor will obviously become reduced at the outer end furthest removed from the wheels. In order to keep this space 'unirform, regardless of the wearingof the bristles, the vertical adjustment for the wheel axle is provided. This adjustment is effectedby a turning'of the thumb screw 23,

whereby the supports are swung'upon their respective hinge connections 21 to any desired degree.

I'claim:

1. In a scrubbing machine of. the class described, comprising in combination, a hollow,

' downwardly opening, elongated base; wheel rotary floor scrubbing- 1 instrumentalities opposite said. wheel supports in the hollow of saidybas e' and extending through the top thereof and having operative connection thereatwith said drivingmeansto be driven thereby, said instrumentalities including "a f ing the machine upon the wheels 19, when 5 vertical, hollow," open-ended shaft and a plurality of scrub "brushes arranged around the lower end thereof; and a liquid coninstrumentalities and be removably seatedj on said base.

j 2. A scrubbingmachine of the character r described, comprising a base, vertically adjustable'wheel supports connected to an end thereof, driving means mounted on the base,

a vertical tubular shaft mounted for rota-- t1on 1n the trame, and having operative connection with they driving means, brushtubular shaftand itsassociated parts, and

controlled liquid discharge means mounted tainer having manually controlled means e Vmeans .op'eratively associated with the shafti to be driven thereby, a reservoir removably supported upon :the base, said. reservoir hav-Q':

ing a cuppedlower portion to enclose the to discharge-liquid from thereservoir into the tubular shaft, 7

V In testimony whereof I mix my signa- :ture. I a supports at one end of said base; a propelling handle for the base; driving means,

' EDWARD-Mk oEo 

